For example on accessing index page of Post Model (/posts), it calls following glob:
Dir["/home/naruse/foo/app/views/posts/index{.en,}{.html,.text,.js,.css,.ics,.csv,.vcf,.png,.jpeg,.gif,.bmp,.tiff,.svg,.mpeg,.xml,.rss,.atom,.yaml,.multipart_form,.url_encoded_form,.json,.pdf,.zip,.gzip,}{}{.raw,.erb,.html,.builder,.ruby,.coffee,.jbuilder,}"]'